優(yōu)化生產(chǎn)中的物流活動(dòng)ppt39頁(yè)-文庫(kù)吧資料
2025-01-26 13:31本頁(yè)面
【正文】 olely on a central planning approach that instructs the production schedules to all processes simultaneously is not likely to result in a JIT process for all operations. 但是 ：?jiǎn)渭兊匾蕾囉?jì)劃生產(chǎn)的方法 ,使所有工序同步生產(chǎn)，并不能完全實(shí)現(xiàn)所有環(huán)節(jié)的準(zhǔn)時(shí)，準(zhǔn)量生產(chǎn) . Transfer Washer Assembly Machining加工 Welding焊接 Assembly組裝 Shipping裝船 Weekly Schedule每周生產(chǎn)計(jì)劃 Typically, one control operation receives the customers’ orders and disseminates schedules. 通常，生產(chǎn)控制部門接受客戶定單，然后制訂并傳達(dá)計(jì)劃 . Production Control 生產(chǎn)控制 Transfer Washer Assembly Machining加工 Welding焊接 Assembly組裝 Shipping裝船 Weekly Schedule每周生產(chǎn)計(jì)劃 Production Control 生產(chǎn)控制 I I I I I I The problem es when a change is made either because the order changes or equipment breaks down. 但是當(dāng)定單有變化或設(shè)備出現(xiàn)問(wèn)題的時(shí)候，就會(huì)發(fā)生一些問(wèn)題： 庫(kù)存 庫(kù)存 庫(kù)存 庫(kù)存 The result is excess inventory… 結(jié)果是導(dǎo)致過(guò)多的庫(kù)存 … …within the plant as WorkInProcess …在本車間工序內(nèi)積壓過(guò)多的庫(kù)存 …suppliers sending in parts that are not needed …上一道工序發(fā)來(lái)的并不需要的部件 Additionally另外 , ? We need extra floor space to store the material. 我們需要額外的空間來(lái)堆放材料 ? Need expeditors to satisfy the changes in schedule. 需要人力和時(shí)間投入來(lái)改變生產(chǎn)計(jì)劃 ? Run overtime to make up parts that we now need. 用加班時(shí)間來(lái)生產(chǎn)現(xiàn)在所需部件 Toyota rethought how to municate schedules. 豐田公司對(duì)調(diào)整生產(chǎn)計(jì)劃做了改進(jìn) : ? Toyota discovered a different way to manage their schedule, 豐田使用不同的方法來(lái)制訂調(diào)整生產(chǎn)計(jì)劃 ? They stopped trying to guess what the customer will want. 他們并不去猜想客戶的需求 Instead相反 .. ? Each department had installed a small inventory of each product. 每個(gè)車間都保持少量的庫(kù)存 ? Downstream processes e to the supplying departments and take what it needs. 下一道工序到上一道工序去取他們所需部件 ? This allows the processes upstream to simply replace what was taken. 這樣 ,上一工序只要補(bǔ)充被取走的部件即可 . The Toyota Production System TPS豐田體系 …. ? Is likely to be the most studied and discussed operations program in the world. 是極可能被全世界研究和討論的體系 ? Numerous books and papers have been written about TPS. 出版了很多關(guān)于 TPS的書籍和其它資料 ? Many have e to characterize TPS as “l(fā)ean production” or NOS. 許多人認(rèn)為豐田體系 (TPS)實(shí)際上就代表優(yōu)化生產(chǎn)或 NOS Lean Manufacturing (NOS) NOS優(yōu)化生產(chǎn) ? Regardless of any author’s opinion or rational, all agree that the foundation of lean manufacturing (NOS) is the continual pursuit to eliminate waste. 盡管大家的觀點(diǎn)有些不一樣 ,但所有人都認(rèn)為 NOS的基礎(chǔ)是持續(xù)不斷地減少浪費(fèi) ? Waste is defined as anything that consumes resources or time, but does not add value to the product. 浪費(fèi)是任何耗費(fèi)資源或時(shí)間 ,但不增加產(chǎn)品價(jià)值的活動(dòng) Excess Inventory is Waste 多余的庫(kù)存
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